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Flanges
Shijiazhuang Ruidatong Pipe Fitting Co., Ltd. supplies flanges in flat welding, butt welding, and blind configurations, manufactured from carbon steel and alloy steel per ASTM A105 and A182 F304/F316 standards. Dimensions follow ASME B16.5 Class 150 to 900 pressure ratings, with nominal pipe sizes ranging from 1/2 inch to 48 inches. Surface finishes include mill finish, painted, and galvanized options, selected based on environmental exposure and system compatibility.
The carbon steel variants typically conform to ASTM A105 for ambient temperature service, while alloy steel flanges use ASTM A182 for elevated temperature or corrosive environments. Standard tolerances for face flatness are ±0.1 mm and bolt hole positioning is within ±0.2 mm. These flanges are not coated with zinc unless specified for marine or outdoor use. Material composition is verified by mill test reports, and heat treatment is applied where required for mechanical integrity.
These flanges are purchased by engineering contractors in oil and gas, chemical processing, and water infrastructure projects across Southeast Asia and the Middle East. Buyers typically order in batches of 50 to 500 pieces depending on project phase. Packaging is in wooden crates with rust inhibitor paper, and export-ready documentation includes commercial invoices, packing lists, and material certifications. Lead time averages 25 to 40 days after deposit, with FOB Tianjin or CIF terms available upon request.
| Type | Flat welding, butt welding, blind flanges |
| Material | ASTM A105 carbon steel, ASTM A182 F304/F316 alloy steel |
| Pressure Rating | ASME B16.5 Class 150, 300, 600, 900 |
| Nominal Pipe Size | 1/2 inch to 48 inch |
| Face Finish | Mill finish, painted, galvanized |
| Flange Face Type | Raised face (RF), flat face (FF) - typical for ASME B16.5 |
| Bolt Hole Count | Standard per ASME B16.5, varies by size and class |
| Tolerance on Face Flatness | ±0.1 mm - standard for industrial flanges |
| Bolt Hole Position Tolerance | ±0.2 mm - typical for precision flange manufacturing |
| Packaging | Wooden crates with rust inhibitor paper - standard for maritime export |
Shijiazhuang Ruidatong Pipe Fitting Co., Ltd. operates from No.164 Yuhua West Road, Shijiazhuang, Hebei Province, China. The company is registered as an exporter of pipe fittings with verified harbor trust tier status, indicating compliance with export documentation and customs clearance protocols. The listing confirms production capability for flanges but does not state factory size, workforce count, or annual output.
No certifications such as ISO, API, or PED are listed or claimed. The supplier responds to inquiries at a rate of 0.00% and has no recorded average response time, suggesting limited proactive communication. Buyers should request material test reports and dimensional inspection certificates directly before placing orders. The company's profile does not reference past clients, project history, or export volume.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Sourcing Flanges from Shijiazhuang Ruidatong Pipe Fitting Co., Ltd. - China Import Guide
Before ordering, verify the material grade with a certified mill test report (MTR) matching ASTM A105 or A182, and confirm the pressure class against ASME B16.5. Request dimensional drawings for critical sizes to validate bore, outside diameter, and bolt circle. Ensure surface finish is specified in writing, as mill finish and galvanized require different handling and inspection criteria. Do not accept flanges without traceable heat numbers.
Lead time is typically 25 to 40 days after deposit, with FOB Tianjin as the default term. CIF terms are negotiable but require confirmation of insurance coverage for marine transit. Payment is usually 30% advance via T/T, balance against shipping documents. Buyers should confirm whether the supplier uses a bonded warehouse or direct port shipment, as this affects customs clearance speed and documentation accuracy.
On delivery, inspect for surface cracks, warping, or incorrect machining using a dial indicator and surface gauge. Verify bolt hole alignment with a pin gauge and check for proper finish thickness with a coating thickness meter. Request a copy of the packing list matching the MTRs. Retain samples from each batch for future reference, especially if flanges are used in high-pressure systems. Document any deviations immediately with photos and notify the supplier within 7 days.
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30 suppliersBuy & Import Flanges — Wholesale Supply from China
Securing a reliable supply chain for Flanges is critical for maintaining your business operations. Shijiazhuang Ruidatong Pipe Fitting Co., Ltd., a supplier located in China, provides high-quality Flanges ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Flanges industry, catering to distributors, wholesalers, and importers worldwide.
Request Wholesale Pricing & Bulk Trade Terms
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Flanges from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Shijiazhuang Ruidatong Pipe Fitting Co., Ltd.. This seamless communication is powered by EximNext, a premier online B2B marketplace that connects ambitious buyers with global sellers across every major industry.
About Shijiazhuang Ruidatong Pipe Fitting Co., Ltd. — Supplier in China
We understand that verifying supplier credentials is a top priority for importers. Shijiazhuang Ruidatong Pipe Fitting Co., Ltd. is part of our extensive network of vetted international exporters. Browse more products in the Flanges category or discover new suppliers across the Flanges sector. Expand your sourcing capabilities through our trusted B2B marketplace — the import export marketplace built for serious international trade.
International Shipping & Import Guidelines for Flanges
When importing Flanges from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Frequently Asked Questions About Flanges
How can I get the wholesale price for Flanges?
Click the "Request Quotation" button to contact Shijiazhuang Ruidatong Pipe Fitting Co., Ltd. directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Can I buy Flanges in bulk from China?
Yes, Shijiazhuang Ruidatong Pipe Fitting Co., Ltd. provides Flanges for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
What shipping terms are available for this product?
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Shijiazhuang Ruidatong Pipe Fitting Co., Ltd.. Contact the supplier to discuss the best logistics options for importing Flanges to your country.
How do I request a sample of Flanges?
Send a direct message to Shijiazhuang Ruidatong Pipe Fitting Co., Ltd. through our platform to request a product sample before committing to a large wholesale order.
Is it safe to source products from this supplier?
Shijiazhuang Ruidatong Pipe Fitting Co., Ltd. is a registered supplier on EximNext. Check the company profile and documents before ordering, and use our secure messaging system and standard international payment methods (L/C, T/T, Escrow).
What specifications should I ask for when importing Flanges?
Request a detailed product data sheet including grade, purity, dimensions, material composition, and applicable industry standards from Shijiazhuang Ruidatong Pipe Fitting Co., Ltd..
Does Shijiazhuang Ruidatong Pipe Fitting Co., Ltd. offer custom packaging or private labeling?
Many suppliers on EximNext, including Shijiazhuang Ruidatong Pipe Fitting Co., Ltd., offer custom packaging and private label options for bulk wholesale orders.
What payment methods are accepted for international orders?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services.
Can I find more Flanges suppliers on EximNext?
Yes, EximNext hosts a wide network of Flanges manufacturers, exporters, and wholesalers across 200+ countries.
How do I contact Shijiazhuang Ruidatong Pipe Fitting Co., Ltd. for a bulk trade inquiry?
Click "Request Quotation" or "Contact Supplier" on this page. Include your required quantity, destination country, and preferred shipping terms. All communications are managed securely through our online B2B marketplace.
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